Slide fastener



oct. 29, 1935. G, H, CORNER 2,018,948

SLIDE FASTENER Filed April 4, 1953 Figa.

h. INVENTOR.

643g/ .George H Corner BY l ce. "e

/j/q ATTORNEYS. 4,/ d

Patented ocr. 29, 1935 -UNITED STATES PATEN1y oFFlCE applicati@ spx-11 4, 193s, serum. caisse m Great Braam may s. 1932 14 Claims. (Cl. 24e-205) This invention relates to slide fasteners of the type described 1n the patent to sundback 1,219,881

in which a pair of flexible stringers. including interlocking elements, are moved into or out of 6 interlocked. relation by means of a slider which may travel along the stringers.

Various arrangements have been used for lock- A ving the slider at "any desired point along the stringers in order to prevent unintentional openl ing of the fastener, either when partially or fully closed, for example as shown 'in the patent to XWhitney 1,598,183. -Such devices are limited in theirapplication because the means for operating the lock and the slider was accessible from one side of the slider only. One of the objects of the present invention is to provide a. lock slider which can be readily operated from either side of the'fastener to which it is applied. More specifically it is an object to 90 provide a slider with a pull on either side for moving the slider to open and close the fastener, it being so arranged that either pull will.auto1nat ically unlock the slider when it is desired to move it and the lockwill automatically lhold the slider.

when the pull is released. Y Other objects and advantages will be apparent from the accompanying description and drawing in which: Fig. 1 is a plan view of a slide fastener emao bodying one form of my invention.

Fig. 2 is a longitudinal section of the fastener on the line 2-2 of Fig. 1.

Fig. 3 is a longitudinal section of the slider showing a. modiedform of locking means.v

Fig. 4 is a cross section of the slider on the line 4--4 of Fig. 3.

The fastener has interlocking elements I0 clamped to the'corded edges I2 'of fabric tapes I4 forming strlngers which 'may be interlocked or disengaged by a slider I5 having upper and lower channel-shaped wings or plates I6 and i8 joined'by a neck 20 and provided with a sliding pull or handle 22. As thus far described the constructionis `well known.

Referring to Fig. 2, a lock in the form of a bar 24 is pivoted to a fulcrum or lug 25 on the upper plate I6 and carries a locking pin 26,proj ecting through the plate. The bar is normally urged by a spring 3D to press the pin 26 into the spacesA between the interlocking elements lll on one of on by the lugs 3|. ries the locking pin 51. Fulcrums and 62 are the stringers. Preferably the side of the pin ianing thethroat or right hand end oftheslider, as

v seen in Fig. 2, is rounded so that it can automatically ride over the interlocking elements against the force of the spring when the slider is being I moved in a directionto close the fastener, and the opposite face of the pin is square to engage an interlocking element and prevent opening of the fastener. Thebar is T-shaped in cross section to facilitate the attachment of the pull 22 by means l0, of the prongs 3i. The top oi Vthe T is turned down at the ends of the bar, as shown at 32 and 34, to provide a finished appearance as well as a retaining pocket for the spring 30 and a retaining end or'stop for the pull 22. The shape of the end 15 34 provides a 'cam face engaged by the prongs 3| to automatically release the locking pin 26 whenever the pull is positioned parallel to the slider body and actuated in a direction to open the fastener. Theend 34 is turned out to provide a stop zo lug 36 which in cooperation with acap 38 limits the outward movement of the pin 26.

A link 40 secured to the bar 24 passes through the throat of the slider between the disengaged` `portions of the stringers, terminating in a trian- 25 gular eye 42 carrying a pullchain 44. The link is normally held by the force of the spring 30 so -that the triangular eye is within a conical hole 45 in the lower plate I8, as shown in Fig. 2, but

a pull on the chain in any direction tending to 30V open the fastener causes the eye to ride on the cam face formedv by the conical walls and thus pull the link to release locking pin 26.

In the modiied form shown in Figs.- 3 and 4, the wings 46 and 48 are provided with hooks 56' 35 and 52 to which are secured a U-shaped spring member 54 held in the longitudinal centerof the slider by lugs 56. The spring is T-shaped in cross section and the pull 22 is slidably secured there- One end of the spring car 40 formed between the lugs 56 on which the spring member can rock.

The pull may travel onone side of the slider between the dotted line position a and the dotted 45 line position b shownin Fig. 3. `The fastener is opened by exerting force on the pull in the proper direction, the pull being held at any convenient angle, usually at the locking pin end of the spring, which latter is formed with the cam surface which 50 insures release of the locking pin 51 even when the pull is operated parallel to the slider as indicated by the dotted lines a. 'I'he lug or hook 52 acts as a stop to prevent excessive movement of the spring.

The pull member passed across the neck of the slider can be operated on the other side between the positions c and d indicated in Fig. 3. When the pull is in position c it abuts against a stop 6I. When in this position and pulled in a direction tending to open the fastener, it exerts an outward force lon the U-shaped spring 54 causing it toArock about the fulcrum 62 on the opposite side of the slider and thus release the locking pin. 'Ihe inherent elasticity of the spring member 54 automatically presses the pin 51 into lockingposition wheneverl the pull is released from any position.

A slide fastener tted with a slider according to the invention is convenient to open or close from either side of the article to which it is at- 1 tached and as the locking mechanism is operable from either side there is no diilculty in releasing same when it is desired to open or close the fastener.

While I have shown and described in this application embodiments which my invention may assume in practice, it will be understood that these embodiments are merely for the purpose of illustration and description and that various other forms may be devised within the scope of my invention as defined in the appended claims.

What I claim as my invention isz- 1. For slide fasteners of the type having a pair of flexible stringers provided with interlocking elements, a slider adapted to move along the stringers to interlock or disengage the elements, means carried by the slider for locking the slider at any desired point along the stringers, a control for the locking moans on one vside of the slider and a second and separate control for the locking means on the other side of the slider.

2. For s'lide fasteners of the type having a pair y i of ilexible stringers provided with interlocking elements, a slider adapted to move along the stringers to interlock or disengage the elements,` a locking member on the slider, spring means carried by the slider tending normally to hold the locking member in position to lock the slider and means on each side of the slider for moving it along the stringers, said last mentioned means being constructed and arranged automatically to release the locking means upon being operated in a direction tending to disengage the elements.

3. For slide fasteners of the type having a pair of flexible stringers provided with interlocking elements, a slider adapted to move along the stringersto interlock or disengage-the elements, a lock carried by the slider for securing the slider at any desired position along the stringers, means including a bar tendingnormally to hold the lock in locking position, a fulcrum for said bar on one side of the slider, and means operable from the other side of the slider for rotating the bar on the fulcrum to release the lock.

4. For slide fasteners of the type having ilexible stringers provided with interlocking elements, a' slider mounted on said stringers and movable along theA same to engage and disengage the elements, a locking member 0n .one side 'of the slider and movable relative thereto into and .out of locking engagement with vthe fastener' elements, and a lock operating member Apermanently located on the other side of the slider and conv elements, a slider adapted to move along the any desired point along the stringersfand in nected to said locking member for moving the same relatively to said slider.

5. For slide fasteners of the type having a pair of flexible stringers provided with interlocking stringers to interlock or disengage the elements, a lock on one side of the slider, resilient means normally tending to move the lock to locking position and means operable from the other side of the slider moving the lock to unlocked posi- 10 6. For slide fasteners of thetype having a. pair of'iiexble stringers providedwith interlocking elements, a' slider adapted to move along the stringers to interlock or disengage the elements, 15

'a bar pivoted on one side of the slider, a lock vcarried by the bar, resilient means acting on the bar to move the lock to locking position and means operablefrom the other side of the slider for overcoming the, resilient means.

' 7. For slide fasteners of the type having a pair of` flexible stringers provided with interlocking elements, a slider adapted to move along the stringers to interlock or disengage the elements, a bar pivoted on one side of the slider, alock 25 carried by the bar, resilient means acting on the bar to move the lock to locking position, meansV operable from the otherside of the slider for` overcoming 'the resilient means and a pull on the bar for opening a'nd closing the'slider, the bar 30 being constructed and arranged automatically to move the lock to unlocking position when the pull is operated in a direction to disengage the interlocking elements.

8. For slide fasteners of the type having a pair 35` of exible stringers provided with interlocking elements, a slider adapted to move along the stringers to interlock ordisenga'ge'the elements, a bar pivoted to one side ofthe slider, a lock carried by the bar, and means securedfto the 40 of iiexible stringers provided with interlockiif 45 i elements, ya slider adapted to move along-the stringers to interlock or disengage the elex'nents,v

a U-shaped member extending on both' sides of and movably mounted on the slider, a lock con# trolled by movement of said member,l and a pull 50 attached to said member for movingthe slider. said member being constructed and arranged' to be moved by said pull from either side of the slider to control the lock. I 1

10. Apparatus deiined in claim 9 in which' the 55 U-shaped member is resilient and normally tends to hold the lock locking-position.

f l1. For. slide fasteners of ther-type having a pair of exible stringers provided 4"with interlockingr` elements, a slider adapted to move alongv theco' stringers to' interlock or disengage thefimgfs means on' one side of the'slider for lockingit passing through the slider for operating tir from the opposite side of the slider.

13. For slide yfasteners ofthe'type'ihavin'g auw pair of exible stringers provided with interlocking elements, a` slider adapted to move along the stringers to interlock or disengage the elements,

a bar mounted on one side of the slider, a lock 5 carried by the bar, a pull memberslidable on the bar and means secured to the bar and through the slider for operating the lock from the opposite side of the slider.

14. For slide fasteners of the type having a pair of flexible stringers provided with interlocking elements, a slider movable along the stringers for interlocking or disengaging the elements. a locking member secured to one side of the slider, a pull secured to the locking member and means through the slider for operating the locking member from the opposite side o! the moms HENRY CLIFFORD CORNER. 

